CVE-2026-126166
CVE-2026-126166 key facts
- CISA KEV
- Not listed (catalogue checked )
- Highest advisory rating
- High
- Vendor advisories
- 1 from Fortinet
- Listed by VulniPulse
Ratings, versions and fixes are quoted from the vendor advisories that cover only CVE-2026-126166; each belongs to its advisory, not to every product listed. How records are collected and checked.
Vendor advisories for CVE-2026-126166
Fortinet
1 advisory- Advisory severityHigh7.6
High [CVE-2026-126166 +3] Improper neutralization of special elements used in a command
FG-IR-26-218Source published Source updated
This bulletin covers 4 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
CVSSv3 Score: 7.6 An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') [CWE-88] in FortiMail may allow an authenticated remote attacker with domain admin or admin privileges to delete users of other tenant domains on a paired FortiAuthenticator, execute arbitrary code as root or arbitrary CLI commands, and read or write arbitrary files as root via crafted HTTP requests to the administrative interface. Revised on 2026-11-10 00:00:00
- Affected products in this advisory
- FortiMail
- Source-reported affected versions
- FortiMail: 7.2.0 through 8.0.2 (vendor-listed versions)
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
References
More Fortinet advisories
CVE-2026-126151Nov 10, 2026Incorrect implementation of authentication algorithm in fortiweb2CVE-2026-126155Nov 10, 2026FortiMail improper access controlCVE-2026-126148Nov 10, 2026FortiMail command injectionCVE-2026-126158Nov 10, 2026FortiMail command injectionCVE-2026-126164Nov 10, 2026FortiMail SQL injectionCVE-2026-126144Nov 10, 2026FortiMail command injection
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